[PATCH bpf-next 18/18] selftests/bpf: Enable stack argument tests for arm64

Yonghong Song
2026-04-24T17:17:34Z

From: Puranjay Mohan <puranjay@kernel.org>

Now that arm64 supports stack arguments, enable the existing stack_arg,
stack_arg_kfunc and verifier_stack_arg tests for __TARGET_ARCH_arm64.

Signed-off-by: Puranjay Mohan <puranjay@kernel.org>
Signed-off-by: Yonghong Song <yonghong.song@linux.dev>
---
tools/testing/selftests/bpf/progs/btf__stack_arg_precision.c | 3 ++-
tools/testing/selftests/bpf/progs/stack_arg.c | 3 ++-
tools/testing/selftests/bpf/progs/stack_arg_kfunc.c | 3 ++-
tools/testing/selftests/bpf/progs/stack_arg_precision.c | 3 ++-
tools/testing/selftests/bpf/progs/verifier_stack_arg.c | 3 ++-
5 files changed, 10 insertions(+), 5 deletions(-)

diff --git a/tools/testing/selftests/bpf/progs/btf__stack_arg_precision.c b/tools/testing/selftests/bpf/progs/btf__stack_arg_precision.c
index 296fddfe6804..8d38aafe66a2 100644
--- a/tools/testing/selftests/bpf/progs/btf__stack_arg_precision.c
+++ b/tools/testing/selftests/bpf/progs/btf__stack_arg_precision.c
@@ -4,7 +4,8 @@
#include <bpf/bpf_helpers.h>
#include "../test_kmods/bpf_testmod_kfunc.h"

-#if defined(__TARGET_ARCH_x86) && defined(__BPF_FEATURE_STACK_ARGUMENT)
+#if (defined(__TARGET_ARCH_x86) || defined(__TARGET_ARCH_arm64)) && \
+ defined(__BPF_FEATURE_STACK_ARGUMENT)

long subprog_call_mem_kfunc(long a, long b, long c, long d, long e, long size)
{
diff --git a/tools/testing/selftests/bpf/progs/stack_arg.c b/tools/testing/selftests/bpf/progs/stack_arg.c
index ab6240b997c5..b5e9929a4d63 100644
--- a/tools/testing/selftests/bpf/progs/stack_arg.c
+++ b/tools/testing/selftests/bpf/progs/stack_arg.c
@@ -21,7 +21,8 @@ struct {

int timer_result;

-#if defined(__TARGET_ARCH_x86) && defined(__BPF_FEATURE_STACK_ARGUMENT)
+#if (defined(__TARGET_ARCH_x86) || defined(__TARGET_ARCH_arm64)) && \
+ defined(__BPF_FEATURE_STACK_ARGUMENT)

const volatile bool has_stack_arg = true;

diff --git a/tools/testing/selftests/bpf/progs/stack_arg_kfunc.c b/tools/testing/selftests/bpf/progs/stack_arg_kfunc.c
index fa9def876ea5..da0d4f91d273 100644
--- a/tools/testing/selftests/bpf/progs/stack_arg_kfunc.c
+++ b/tools/testing/selftests/bpf/progs/stack_arg_kfunc.c
@@ -6,7 +6,8 @@
#include "bpf_kfuncs.h"
#include "../test_kmods/bpf_testmod_kfunc.h"

-#if defined(__TARGET_ARCH_x86) && defined(__BPF_FEATURE_STACK_ARGUMENT)
+#if (defined(__TARGET_ARCH_x86) || defined(__TARGET_ARCH_arm64)) && \
+ defined(__BPF_FEATURE_STACK_ARGUMENT)

const volatile bool has_stack_arg = true;

diff --git a/tools/testing/selftests/bpf/progs/stack_arg_precision.c b/tools/testing/selftests/bpf/progs/stack_arg_precision.c
index 29b2f2aea931..460d1872a84c 100644
--- a/tools/testing/selftests/bpf/progs/stack_arg_precision.c
+++ b/tools/testing/selftests/bpf/progs/stack_arg_precision.c
@@ -6,7 +6,8 @@
#include "../test_kmods/bpf_testmod_kfunc.h"
#include "bpf_misc.h"

-#if defined(__TARGET_ARCH_x86) && defined(__BPF_FEATURE_STACK_ARGUMENT)
+#if (defined(__TARGET_ARCH_x86) || defined(__TARGET_ARCH_arm64)) && \
+ defined(__BPF_FEATURE_STACK_ARGUMENT)

/* Force kfunc extern BTF generation for inline asm call below.
* Uses its own SEC so it's not included as a .text subprog.
diff --git a/tools/testing/selftests/bpf/progs/verifier_stack_arg.c b/tools/testing/selftests/bpf/progs/verifier_stack_arg.c
index 6b596ad63774..b412c311b757 100644
--- a/tools/testing/selftests/bpf/progs/verifier_stack_arg.c
+++ b/tools/testing/selftests/bpf/progs/verifier_stack_arg.c
@@ -12,7 +12,8 @@ struct {
__type(value, long long);
} map_hash_8b SEC(".maps");

-#if defined(__TARGET_ARCH_x86) && defined(__BPF_FEATURE_STACK_ARGUMENT)
+#if (defined(__TARGET_ARCH_x86) || defined(__TARGET_ARCH_arm64)) && \
+ defined(__BPF_FEATURE_STACK_ARGUMENT)

__noinline __used
static int subprog_6args(int a, int b, int c, int d, int e, int f)
--
2.52.0